Phylogenetic Taxonomy and Classification of the Crinoidea (Echinodermata)
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Adhesion in Echinoderms
Adhesion in echinoderms PATRICK FLAMMANG* Laboratoire de Biologie marine, Universite' de Mons-Hainaut, Mons, Belgium Final manuscript acceptance: August 1995 KEYWORDS: Adhesive properties, podia, larvae, Cuvierian tubules, Echinodermata. CONTENTS 1 Introduction 2 The podia 2.1 Diversity 2.2 Basic structure and function 2.3 Adhesivity 3 Other attachment mechanisms of echinoderms 3.1 Larval and postlarval adhesive structures 3.2 Cuvierian tubules 4 Comparison with other marine invertebrates 5 Conclusions and prospects Acknowledgements References 1 INTRODUCTION Marine organisms have developed a wide range of mechanisms allowing them to attach to or manipulate a substratum (Nachtigall 1974). Among 1 these mechanisms, one can distinguish between mechanical attachments (e.g. hooks or suckers) and chemical attachments (with adhesive sub- stances). The phylum Echinodermata is quite exceptional in that all its species, *Senior research assistant, National Fund for Scientific Research, Belgium. I whatever their life style, use attachment mechanisms. These mechanisms allow some of them to move, others to feed, and others to burrow in par- ticulate substrata. In echinoderms, adhesivity is usually the function of specialized structures, the podia or tube-feet. These podia are the exter- nal appendages of the arnbulacral system and are also probably the most advanced hydraulic structures in the animal kingdom. 2 THE PODIA From their presumed origin as simple respiratory evaginations of the am- bulacral system (Nichols 1962), podia have diversified into the wide range of specialized structures found in extant echinoderms. This mor- phological diversity of form reflects the variety of functions that podia perform (Lawrence 1987). Indeed, they take part in locomotion, burrow- ing, feeding, sensory perception and respiration. -
Crinoidea, Echinodermata) from Poland
Title: Uncovering the hidden diversity of Mississippian crinoids (Crinoidea, Echinodermata) from Poland Author: Mariusz A. Salamon, William I. Ausich, Tomasz Brachaniec, Bartosz J. Płachno, Przemysław Gorzelak Citation style: Salamon Mariusz A., Ausich William I., Brachaniec Tomasz, Płachno Bartosz J., Gorzelak Przemysław. (2020). Uncovering the hidden diversity of Mississippian crinoids (Crinoidea, Echinodermata) from Poland. "PeerJ" Vol. 8 (2020), art. no e10641, doi 10.7717/peerj.10641 Uncovering the hidden diversity of Mississippian crinoids (Crinoidea, Echinodermata) from Poland Mariusz A. Salamon1, William I. Ausich2, Tomasz Brachaniec1, Bartosz J. Pªachno3 and Przemysªaw Gorzelak4 1 Faculty of Natural Sciences, Institute of Earth Sciences, University of Silesia in Katowice, Sosnowiec, Poland 2 School of Earth Sciences, Ohio State University, Columbus, OH, United States of America 3 Faculty of Biology, Institute of Botany, Jagiellonian University in Kraków, Cracow, Poland 4 Institute of Paleobiology, Polish Academy of Sciences, Poland, Warsaw, Poland ABSTRACT Partial crinoid crowns and aboral cups are reported from the Mississippian of Poland for the first time. Most specimens are partially disarticulated or isolated plates, which prevent identification to genus and species, but regardless these remains indicate a rich diversity of Mississippian crinoids in Poland during the Mississippian, especially during the late Viséan. Lanecrinus? sp. is described from the late Tournaisian of the D¦bnik Anticline region. A high crinoid biodiversity occurred during late Viséan of the Holy Cross Mountains, including the camerate crinoids Gilbertsocrinus? sp., Platycrinitidae Indeterminate; one flexible crinoid; and numerous eucladid crinoids, including Cyathocrinites mammillaris (Phillips), three taxa represented by partial cups left in open nomenclature, and numerous additional taxa known only from isolated radial plates, brachial plates, and columnals. -
From the Ordovician (Darriwillian) of Morocco
Palaeogeographic implications of a new iocrinid crinoid (Disparida) from the Ordovician (Darriwillian) of Morocco Samuel Zamora1, Imran A. Rahman2 and William I. Ausich3 1 Instituto Geologico´ y Minero de Espana,˜ Zaragoza, Spain 2 School of Earth Sciences, University of Bristol, Bristol, United Kingdom 3 School of Earth Sciences, Ohio State University, Columbus, OH, United States ABSTRACT Complete, articulated crinoids from the Ordovician peri-Gondwanan margin are rare. Here, we describe a new species, Iocrinus africanus sp. nov., from the Darriwilian-age Taddrist Formation of Morocco. The anatomy of this species was studied using a combination of traditional palaeontological methods and non-destructive X-ray micro-tomography (micro-CT). This revealed critical features of the column, distal arms, and aboral cup, which were hidden in the surrounding rock and would have been inaccessible without the application of micro-CT. Iocrinus africanus sp. nov. is characterized by the presence of seven to thirteen tertibrachials, three in-line bifurcations per ray, and an anal sac that is predominantly unplated or very lightly plated. Iocrinus is a common genus in North America (Laurentia) and has also been reported from the United Kingdom (Avalonia) and Oman (middle east Gondwana). Together with Merocrinus, it represents one of the few geographically widespread crinoids during the Ordovician and serves to demonstrate that faunal exchanges between Laurentia and Gondwana occurred at this time. This study highlights the advantages of using both conventional -
Progress in Echinoderm Paleobiology
Journal of Paleontology, 91(4), 2017, p. 579–581 Copyright © 2017, The Paleontological Society 0022-3360/17/0088-0906 doi: 10.1017/jpa.2017.20 Progress in echinoderm paleobiology Samuel Zamora1,2 and Imran A. Rahman3 1Instituto Geológico y Minero de España (IGME), C/Manuel Lasala, 44, 9ºB, 50006, Zaragoza, Spain 〈[email protected]〉 2Unidad Asociada en Ciencias de la Tierra, Universidad de Zaragoza-IGME, Zaragoza, Spain 3Oxford University Museum of Natural History, Parks Road, Oxford, OX1 3PW, United Kingdom 〈[email protected]〉 Echinoderms are a diverse and successful phylum of exclusively Universal elemental homology (UEH) has proven to be one marine invertebrates that have an extensive fossil record dating of the most powerful approaches for understanding homology back to Cambrian Stage 3 (Zamora and Rahman, 2014). There in early pentaradial echinoderms (Sumrall, 2008, 2010; Sumrall are five extant classes of echinoderms (asteroids, crinoids, and Waters, 2012; Kammer et al., 2013). This hypothesis echinoids, holothurians, and ophiuroids), but more than 20 focuses on the elements associated with the oral region, extinct groups, all of which are restricted to the Paleozoic identifying possible homologies at the level of specific plates. (Sumrall and Wray, 2007). As a result, to fully appreciate the Two papers, Paul (2017) and Sumrall (2017), deal with the modern diversity of echinoderms, it is necessary to study their homology of plates associated with the oral area in early rich fossil record. pentaradial echinoderms. The former contribution describes and Throughout their existence, echinoderms have been an identifies homology in various ‘cystoid’ groups and represents a important component of marine ecosystems. -
PROGRAMME ABSTRACTS AGM Papers
The Palaeontological Association 63rd Annual Meeting 15th–21st December 2019 University of Valencia, Spain PROGRAMME ABSTRACTS AGM papers Palaeontological Association 6 ANNUAL MEETING ANNUAL MEETING Palaeontological Association 1 The Palaeontological Association 63rd Annual Meeting 15th–21st December 2019 University of Valencia The programme and abstracts for the 63rd Annual Meeting of the Palaeontological Association are provided after the following information and summary of the meeting. An easy-to-navigate pocket guide to the Meeting is also available to delegates. Venue The Annual Meeting will take place in the faculties of Philosophy and Philology on the Blasco Ibañez Campus of the University of Valencia. The Symposium will take place in the Salon Actos Manuel Sanchis Guarner in the Faculty of Philology. The main meeting will take place in this and a nearby lecture theatre (Salon Actos, Faculty of Philosophy). There is a Metro stop just a few metres from the campus that connects with the centre of the city in 5-10 minutes (Line 3-Facultats). Alternatively, the campus is a 20-25 minute walk from the ‘old town’. Registration Registration will be possible before and during the Symposium at the entrance to the Salon Actos in the Faculty of Philosophy. During the main meeting the registration desk will continue to be available in the Faculty of Philosophy. Oral Presentations All speakers (apart from the symposium speakers) have been allocated 15 minutes. It is therefore expected that you prepare to speak for no more than 12 minutes to allow time for questions and switching between presenters. We have a number of parallel sessions in nearby lecture theatres so timing will be especially important. -
Reinterpretation of the Enigmatic Ordovician Genus Bolboporites (Echinodermata)
Reinterpretation of the enigmatic Ordovician genus Bolboporites (Echinodermata). Emeric Gillet, Bertrand Lefebvre, Véronique Gardien, Emilie Steimetz, Christophe Durlet, Frédéric Marin To cite this version: Emeric Gillet, Bertrand Lefebvre, Véronique Gardien, Emilie Steimetz, Christophe Durlet, et al.. Reinterpretation of the enigmatic Ordovician genus Bolboporites (Echinodermata).. Zoosymposia, Magnolia Press, 2019, 15 (1), pp.44-70. 10.11646/zoosymposia.15.1.7. hal-02333918 HAL Id: hal-02333918 https://hal.archives-ouvertes.fr/hal-02333918 Submitted on 13 Nov 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. 1 Reinterpretation of the Enigmatic Ordovician Genus Bolboporites 2 (Echinodermata) 3 4 EMERIC GILLET1, BERTRAND LEFEBVRE1,3, VERONIQUE GARDIEN1, EMILIE 5 STEIMETZ2, CHRISTOPHE DURLET2 & FREDERIC MARIN2 6 7 1 Université de Lyon, UCBL, ENSL, CNRS, UMR 5276 LGL-TPE, 2 rue Raphaël Dubois, F- 8 69622 Villeurbanne, France 9 2 Université de Bourgogne - Franche Comté, CNRS, UMR 6282 Biogéosciences, 6 boulevard 10 Gabriel, F-2100 Dijon, France 11 3 Corresponding author, E-mail: [email protected] 12 13 Abstract 14 Bolboporites is an enigmatic Ordovician cone-shaped fossil, the precise nature and systematic affinities of 15 which have been controversial over almost two centuries. -
Echinodermata) and Their Permian-Triassic Origin
Molecular Phylogenetics and Evolution 66 (2013) 161-181 Contents lists available at SciVerse ScienceDirect FHYLÖGENETICS a. EVOLUTION Molecular Phylogenetics and Evolution ELSEVIER journal homepage:www.elsevier.com/locate/ympev Fixed, free, and fixed: The fickle phylogeny of extant Crinoidea (Echinodermata) and their Permian-Triassic origin Greg W. Rouse3*, Lars S. Jermiinb,c, Nerida G. Wilson d, Igor Eeckhaut0, Deborah Lanterbecq0, Tatsuo 0 jif, Craig M. Youngg, Teena Browning11, Paula Cisternas1, Lauren E. Helgen-1, Michelle Stuckeyb, Charles G. Messing k aScripps Institution of Oceanography, UCSD, 9500 Gilman Drive, La Jolla, CA 92093, USA b CSIRO Ecosystem Sciences, GPO Box 1700, Canberra, ACT 2601, Australia c School of Biological Sciences, The University of Sydney, NSW 2006, Australia dThe Australian Museum, 6 College Street, Sydney, NSW 2010, Australia e Laboratoire de Biologie des Organismes Marins et Biomimétisme, University of Mons, 6 Avenue du champ de Mars, Life Sciences Building, 7000 Mons, Belgium fNagoya University Museum, Nagoya University, Nagoya 464-8601, Japan s Oregon Institute of Marine Biology, PO Box 5389, Charleston, OR 97420, USA h Department of Climate Change, PO Box 854, Canberra, ACT 2601, Australia 1Schools of Biological and Medical Sciences, FI 3, The University of Sydney, NSW 2006, Sydney, Australia * Department of Entomology, NHB E513, MRC105, Smithsonian Institution, NMNH, P.O. Box 37012, Washington, DC 20013-7012, USA k Oceanographic Center, Nova Southeastern University, 8000 North Ocean Drive, Dania Beach, FL 33004, USA ARTICLE INFO ABSTRACT Añicle history: Although the status of Crinoidea (sea lilies and featherstars) as sister group to all other living echino- Received 6 April 2012 derms is well-established, relationships among crinoids, particularly extant forms, are debated. -
Evidence for a Sacrificial Response to Predation in the Reproductive
OCEANOLOGICA ACTA- VOL. 19- W 3-4 ~ -----~- Crinoidea Evidence for a sacrificial response Antedon Reproductive cycle Predation to predation in the reproductive Crenilabrus Crinoidea strate gy of the comatulid crinoid Antedon Cycle reproductif Prédation Antedon bifida from the English Channel Crenilabrus David NICHOLS Department of Biological Sciences, University of Exeter, Hatherly Laboratories, Prince ofWales Road, Exeter EX4 4PS, UK. Received 13112/94, in revised forrn 03/11/95, accepted 07111/95. ABSTRACT A population of the North-East Atlantic feather star Antedon bifida (Pennant) from a site in strong currents off South Devon, U.K., maintains a high level of maturity throughout its annual cycle, yet spawns only at a precise period of the year. Most individuals Jose a proportion (mean: 17 %) of their pinnules from pre dation by the corkwing wrasse, Crenilabrus melops. An account of sorne aspects of predation of the crinoid by the fish is given. It is suggested that the crinoid maintains the maturity of its reproductive tissues at an unusually high level throughout the year so that the predator will take the pinnules, including the energy-rich gonads, in preference to the more vulnerable calyx. It is also sugges ted that a stress-response may be involved in the maintenance of continuous gametogenic activity by the crinoid, and, further, that attracting the predatory fish to itself may help rid the crinoid' s exterior of epizoics. RÉSUMÉ Se sacrifier à la prédation, une stratégie de reproduction développée par la comatule Antedon bifida en Manche. Une population de la comatule du nord-est Atlantique Antedon bifida (Pennant), située dans une zone de forts courants au large de la côte du sud du Devonshire (U.K.), maintient sa maturité à un haut niveau pendant tout son cycle annuel, alors qu'eUe ne pond qu'à une période très précise de l'année. -
Variable Tensility of the Ligaments in the Stalk of Sea-Lily
FAU Institutional Repository http://purl.fcla.edu/fau/fauir This paper was submitted by the faculty of FAU’s Harbor Branch Oceanographic Institute. Notice: © 1994 Elsevier B.V. This manuscript is an author version with the final publication available by http://www.sciencedirect.com/science/journal/03009629 and may be cited as: Wilkie, I. C., Emson, R. H., & Young, C. M. (1994). Variable tensility of the ligaments in the stalk of sea‐lily. Comparative Biochemistry and Physiology Part A: Physiology, 109(3), 633‐641. doi:10.1016/0300‐9629(94)90203‐8 Camp. Biod~em. Plqxiol. Vol. 109A. No. 3, pp. 633-64 I, 1994 Pergamon Copyright I$; 1994 Elsevier Science Ltd Printed in Great Britain. All rights reserved 03~-9629~94 $7.00 t 0.00 0~%2~%~1~9 Variable tensility of the ligaments in the stalk of a sea-lily I. C. Wilkie,* R. H. Emson”f and C. M. Young1 *Department of Biological Sciences, Gfasgow Caledonian University, 70 Cowcaddens Road, Glasgow G4 OBA, U.K.; tDivision of Life Sciences, King’s College, Campden Hill Road, London W8 7AH, U.K.; and $Harbor Branch Oceanographjc Institution, Box 196, Fort Pierce, FL 33450, U.S.A. The stalk of isocrinid sea-lilies consists largely of skeletal plates linked by collagenous ligaments. Although lacking contractile tissue, it can bend in response to external stimuli. The stalk of Cctnocrinusaster& was tested mechanically to determine whether the mechanical properties of its ligaments are under physiological control. In bending tests, ligaments at the mobile symplexal junctions showed a limited “slackening” response to high K+ concentrations which was blocked reversibly by the anaesthetic propylene phenoxetol. -
Antedon Petasus (Fig
The genus Antedon (Crinoidea, Echinodermata): an example of evolution through vicariance Hemery Lenaïg 1, Eléaume Marc 1, Chevaldonné Pierre 2, Dettaï Agnès 3, Améziane Nadia 1 1. Muséum national d'Histoire naturelle, Département des Milieux et Peuplements Aquatiques Introduction UMR 5178 - BOME, CP26, 57 rue Cuvier 75005 Paris, France 2. Centre d’Océanologie de Marseille, Station Marine d’Endoume, CNRS-UMR 6540 DIMAR Chemin de la batterie des Lions 13007 Marseille, France 3. Muséum national d'Histoire naturelle, Département Systématique et Evolution The crinoid genus Antedon is polyphyletic and assigned to the polyphyletic family UMR 7138, CP 26, 57 rue Cuvier 75005 Paris, France Antedonidae (Hemery et al., 2009). This genus includes about sixteen species separated into two distinct groups (Clark & Clark, 1967). One group is distributed in the north-eastern Atlantic and the Mediterranean Sea, the other in the western Pacific. Species from the western Pacific group are more closely related to other non-Antedon species (e.g. Dorometra clymene) from their area than to Antedon species from the Atlantic - Mediterranean zone (Hemery et al., 2009). The morphological identification of Antedon species from the Atlantic - Mediterranean zone is based on skeletal characters (Fig. 1) that are known to display an important phenotypic plasticity which may obscure morphological discontinuities and prevent correct identification of species (Eléaume, 2006). Species from this zone show a geographical structuration probably linked to the events that followed the Messinian salinity crisis, ~ 5 Mya (Krijgsman Discussion et al., 1999). To test this hypothesis, a phylogenetic study of the Antedon species from the Atlantic - The molecular analysis and morphological identifications provide divergent Mediterranean group was conducted using a mitochondrial gene. -
The Cambrian Substrate Revolution and the Early Evolution of Attachment in MARK Suspension-Feeding Echinoderms
Earth-Science Reviews 171 (2017) 478–491 Contents lists available at ScienceDirect Earth-Science Reviews journal homepage: www.elsevier.com/locate/earscirev The Cambrian Substrate Revolution and the early evolution of attachment in MARK suspension-feeding echinoderms ⁎ Samuel Zamoraa,b, , Bradley Delinec, J. Javier Álvarod, Imran A. Rahmane a Instituto Geológico y Minero de España, C/Manuel Lasala, 44, 9B, Zaragoza 50006, Spain b Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington DC 20013-7012, USA c University of West Georgia, Carrollton, GA, USA d Instituto de Geociencias (CSIC-UCM), c/José Antonio Novais 12, 28040 Madrid, Spain e Oxford University Museum of Natural History, Parks Road, Oxford OX1 3PW, UK ARTICLE INFO ABSTRACT Keywords: The Cambrian, characterized by the global appearance of diverse biomineralized metazoans in the fossil record Palaeoecology for the first time, represents a pivotal point in the history of life. This period also documents a major change in Evolution the nature of the sea floor: Neoproterozoic-type substrates stabilized by microbial mats were replaced by un- fl Sea oor consolidated soft substrates with a well-developed mixed layer. The effect of this transition on the ecology and Attachment evolution of benthic metazoans is termed the Cambrian Substrate Revolution (CSR), and this is thought to have impacted greatly on early suspension-feeding echinoderms in particular. According to this paradigm, most echinoderms rested directly on non-bioturbated soft substrates as sediment attachers and stickers during the Cambrian Epoch 2. As the substrates became increasingly disturbed by burrowing, forming a progressively thickening mixed layer, echinoderms developed new strategies for attaching to firm and hard substrates. -
An Annotated Checklist of the Marine Macroinvertebrates of Alaska David T
NOAA Professional Paper NMFS 19 An annotated checklist of the marine macroinvertebrates of Alaska David T. Drumm • Katherine P. Maslenikov Robert Van Syoc • James W. Orr • Robert R. Lauth Duane E. Stevenson • Theodore W. Pietsch November 2016 U.S. Department of Commerce NOAA Professional Penny Pritzker Secretary of Commerce National Oceanic Papers NMFS and Atmospheric Administration Kathryn D. Sullivan Scientific Editor* Administrator Richard Langton National Marine National Marine Fisheries Service Fisheries Service Northeast Fisheries Science Center Maine Field Station Eileen Sobeck 17 Godfrey Drive, Suite 1 Assistant Administrator Orono, Maine 04473 for Fisheries Associate Editor Kathryn Dennis National Marine Fisheries Service Office of Science and Technology Economics and Social Analysis Division 1845 Wasp Blvd., Bldg. 178 Honolulu, Hawaii 96818 Managing Editor Shelley Arenas National Marine Fisheries Service Scientific Publications Office 7600 Sand Point Way NE Seattle, Washington 98115 Editorial Committee Ann C. Matarese National Marine Fisheries Service James W. Orr National Marine Fisheries Service The NOAA Professional Paper NMFS (ISSN 1931-4590) series is pub- lished by the Scientific Publications Of- *Bruce Mundy (PIFSC) was Scientific Editor during the fice, National Marine Fisheries Service, scientific editing and preparation of this report. NOAA, 7600 Sand Point Way NE, Seattle, WA 98115. The Secretary of Commerce has The NOAA Professional Paper NMFS series carries peer-reviewed, lengthy original determined that the publication of research reports, taxonomic keys, species synopses, flora and fauna studies, and data- this series is necessary in the transac- intensive reports on investigations in fishery science, engineering, and economics. tion of the public business required by law of this Department.